EFM32 Happy Gecko Software Documentation  efm32hg-doc-5.1.2
em_i2c.c File Reference

Detailed Description

Inter-integrated Circuit (I2C) Peripheral API.

Version
5.1.2

License

Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software.
  2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no obligation to support this Software. Silicon Labs is providing the Software "AS IS", with no express or implied warranties of any kind, including, but not limited to, any implied warranties of merchantability or fitness for any particular purpose or warranties against infringement of any proprietary rights of a third party.

Silicon Labs will not be liable for any consequential, incidental, or special damages, or any other relief, or for any claim by any third party, arising from your use of this Software.

Definition in file em_i2c.c.

#include "em_i2c.h"
#include "em_cmu.h"
#include "em_bus.h"
#include "em_assert.h"
#include <limits.h>

Go to the source code of this file.

Functions

uint32_t I2C_BusFreqGet (I2C_TypeDef *i2c)
 Get current configured I2C bus frequency. More...
 
void I2C_BusFreqSet (I2C_TypeDef *i2c, uint32_t freqRef, uint32_t freqScl, I2C_ClockHLR_TypeDef i2cMode)
 Set I2C bus frequency. More...
 
void I2C_Enable (I2C_TypeDef *i2c, bool enable)
 Enable/disable I2C. More...
 
void I2C_Init (I2C_TypeDef *i2c, const I2C_Init_TypeDef *init)
 Initialize I2C. More...
 
void I2C_Reset (I2C_TypeDef *i2c)
 Reset I2C to same state as after a HW reset. More...
 
I2C_TransferReturn_TypeDef I2C_Transfer (I2C_TypeDef *i2c)
 Continue an initiated I2C transfer (single master mode only). More...
 
I2C_TransferReturn_TypeDef I2C_TransferInit (I2C_TypeDef *i2c, I2C_TransferSeq_TypeDef *seq)
 Prepare and start an I2C transfer (single master mode only). More...